Akuna CapitalOA #10
Sequences (20 questions)
估计中等概念题评测数据准备中，可先阅读题面
考点（AI 标注）位运算
| # | Sequence | Answer | Rule |
|---|---|---|---|
| 2 | 5, 8, 13, 21, 34, __ | 55 | Fibonacci |
| 3 | 4, 16, 52, 160, 484, __ | 1456 | a*3 + 4 |
| 5 | 1, 2, 4, 7, 11, 16, __ | 22 | diff 1,2,3,4,5,6 |
| 10 | 2, -4, 10, -24, 58, -140, __ | 338 | a[n] = -2*a[n-1] + 2 |
| 12 | F, S, T, F, F, S, __ | S | First/Second/Third/Fourth/Fifth/Sixth/Seventh |
| 13 | 4, 9, 24, 69, 204, __ | 609 | a[n] = a[n-1]*3 - 3 |
| 15 | 84, 60, 48, 42, __ | 39 | diff 24,12,6,3 |
| 17 | 6, 24, 60, 120, 210, __ | 336 | n(n+1)(n+2) |
| 19 | 26, -17, 6, 5, -2, 3, 2, 1, __ | 1 | Fibonacci-like |